Swath Data File: sb2100_vf.19970503-2400pp.mb41 MBIO Data Format ID: 41 Format name: MBF_SB2100RW Informal Description: SeaBeam 2100 series vender format Attributes: SeaBeam 2100, bathymetry, amplitude and sidescan, 151 beams and 2000 pixels, ascii with binary sidescan, SeaBeam Instruments. Metadata: Vessel: Revelle Institution: SIO Platform: Ship Sonar: Seabeam_2112 Sonar Version: Seabeam_2112_1.2.0.A Cruise ID: GENE04RR Cruise Name: Genesis_Expedition_leg_04 PI: Robert_Weller PI Institution: Woods_Hole_Oceanographic_Institution Client: NOAA Corrected Depths: YES Tide Corrected: NO Depths Manually Edited: NO Depths Auto-Edited: NO Roll Bias: -0.580000 degrees Pitch Bias: -0.620000 degrees Heading Bias: 0.000000 degrees Draft: 6.000000 m Data Totals: Number of Records: 179 Bathymetry Data (151 beams): Number of Beams: 27029 Number of Good Beams: 18191 67.30% Number of Zero Beams: 7581 28.05% Number of Flagged Beams: 1257 4.65% Amplitude Data (151 beams): Number of Beams: 27029 Number of Good Beams: 18191 67.30% Number of Zero Beams: 7581 28.05% Number of Flagged Beams: 1257 4.65% Sidescan Data (2000 pixels): Number of Pixels: 358000 Number of Good Pixels: 292556 81.72% Number of Zero Pixels: 0 0.00% Number of Flagged Pixels: 65444 18.28% Navigation Totals: Total Time: 0.9907 hours Total Track Length: 23.2202 km Average Speed: 23.4376 km/hr (12.6690 knots) Start of Data: Time: 05 03 1997 22:58:45.592000 JD123 Lon: -120.2295 Lat: 24.6138 Depth: 3894.6001 meters Speed: 24.6275 km/hr (13.3121 knots) Heading: 20.4000 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3894.6001 m End of Data: Time: 05 03 1997 23:58:12.200000 JD123 Lon: -120.1600 Lat: 24.8136 Depth: 3982.3000 meters Speed: 28.1285 km/hr (15.2046 knots) Heading: 20.0400 degrees Sonar Depth: 0.0000 m Sonar Altitude: 3982.3000 m Limits: Minimum Longitude: -120.3394 Maximum Longitude: -120.0207 Minimum Latitude: 24.5834 Maximum Latitude: 24.8597 Minimum Sonar Depth: 0.0000 Maximum Sonar Depth: 0.0000 Minimum Altitude: 3878.5000 Maximum Altitude: 4084.0000 Minimum Depth: 3802.3000 Maximum Depth: 4309.7002 Minimum Amplitude: 32.7294 Maximum Amplitude: 70.9794 Minimum Sidescan: 0.6716 Maximum Sidescan: 3460.3913 Data Record Type Notices: DN: 179 MB_DATA_DATA (ID=1): survey data DN: 78 MB_DATA_COMMENT (ID=2): comment DN: 2 MB_DATA_VELOCITY_PROFILE (ID=6): SVP Nonfatal Error Notices: EN: 78 MB_ERROR_COMMENT (ID=-5): Comment record EN: 2 MB_ERROR_OTHER (ID=-8): Neither a data record nor a comment record Problem Notices: Coverage Mask: CM dimensions: 10 10 CM: 1 1 1 1 0 0 0 0 0 0 CM: 1 1 1 1 1 1 1 0 0 0 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 1 CM: 1 1 1 1 1 1 1 1 1 0 CM: 0 1 1 1 1 1 1 0 0 0 CM: 0 0 0 1 1 1 1 1 0 0